V. I. Popadyuk
Peoples’ Friendship University of Russia named after Patrice Lumumba
Russian Federation

Valentin I. Popadyuk - Dr. Sci. (Med.), Professor, Dean of the Faculty of Postgraduate Education and Head of the Department of Otorhinolaryngology of the Medical Institute.

6, Miklukho-Maklai St., Moscow, 117198

I. M. Kirichenko
Peoples’ Friendship University of Russia named after Patrice Lumumba; International Medical Center On Clinics
Russian Federation

Irina M. Kirichenko - Dr. Sci. (Med.), Professor of Department of Otorhinolaryngology of the Medical Institute, PFUR named after Patrice Lumumba; Head of the Department of Otorhinolaryngology of the IMC On Clinics.

6, Miklukho-Maklai St., Moscow, 117198; 32, Bldg. 1, Bolshaya Molchanovka St., Moscow, 121069

G. G. Gusenbekov
Peoples’ Friendship University of Russia named after Patrice Lumumba
Russian Federation

Gamid G. Gusenbekov - Postgraduate Student of the Department of Otorhinolaryngology of the Medical Institute..

6, Miklukho-Maklai St., Moscow, 117198